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Do we need to expand the cosmological standard model? New cepheid observations suggest yes
The Hubble constant describes the rate at which the universe expands. But different measurements of it yield different results – a problem for the cosmic standard model. Today’s paper discusses new Cepheid observations, which increase the problem – so, are we on the brink of new physics?
An iced cosmic-ray macchiato
We know the Universe is filled with particles of extreme energies. The catch? We don’t know how they get their energy.
Baryonification – Dark matter N-body simulations and the impact of gas-trophysics
The effects of gas are complicated and challenging to simulate. Today’s paper explores a way to account for gas in cosmological simulations without actually including it!
Bosons in the Sky with Black Holes
Have you ever wondered how you could build an atom out of a black hole and some bosons? Why of course you have!
Pulling on Pulsars: Searching for Black Holes in Globular Clusters with Pulsars
What’s the best way to look for intermediate mass black holes? The authors of this paper think it’s to measure the change in the accelerations of pulsars in the center of globular clusters.
Compton-Thick or Thin? Classifying NGC 5347
Today’s paper examines the classification of NGC 5347 as a Compton-thick AGN.
Beyond astro-ph
Astronomy beyond the research
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Navigating careers in astronomy
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